Search results
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, CPUE, catch ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ...
Meeting Document : WG-FSA-06/48 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08
one haul (no catch) due to adverse ice conditions, and the vessel exited that Division; • The vessel ... Abstract: The Uruguayan-flagged longliner Banzare experienced sea-ice related, operational ... difficulties in implementing the CCAMLR Tagging Protocol in Division 58.4.1 in 2007/08. Extensive sea-ice cover ... greatly increased the transit times between research haul locations, which resulted in long soak times and ...
Meeting Document : WG-FSA-08/16 : Author(s): A.T. Lozano and O. Pin (Uruguay)
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Variation in the distribution of Antarctic krill Euphausia superba around South Georgia
). The PCA for all cruises combined showed that there were no obvious differences in the type of krill ... Abstract: Between 1980 and 1997 British Antarctic Survey carried out 11 cruises in the region of ... South Georgia. Here we summarize the length-frequency distributions of krill caught on each of these ... cruises and look particularly at differences between krill taken from the eastern and western ends of the ...
Meeting Document : WG-EMM-97/47 : Author(s): Daly, H.I., Murray, A.W.A., Watkins, J.L.
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
Abstract: The pattern of prey distribution can profoundly affect the foraging behavior and ... must be able to adapt quickly to changes in the spatial patterning of prey. Antarctic fur seals feed ... the surface, the time taken for a fur seal to locate a new patch after leaving an old one is an ... indication of the distance between patches. The frequency distribution of intervals between bouts of foraging ...
Meeting Document : WG-EMM-95/23 : Author(s): Boyd, I.L.
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Report on the CCAMLR marine debris monitoring program
annually there have been no long-term trends over the past decade. Extrapolation of these findings to areas ... entanglements and hydrocarbon soilings were received for 2014 from South Africa, the United Kingdom, and Uruguay ... . Non-fishing items such as plastics, packaging materials and wood remain the most common type of debris ... items found in beach surveys. The fishing items found were mostly from longline and trawl origins ...
Meeting Document : WG-FSA-14/68 : Author(s): Secretariat
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Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress
organisms in the Ross Sea was used whenever available. Where no information in the literature was available ... Abstract: We report on the development of a carbon-budget trophic-model of the Ross Sea. We ... provisionally defined the food web of the Ross Sea as having the following functional compartments: birds, seals ... column, ice, and benthic). The simple trophic model requires well over a hundred parameters, each of ...
Meeting Document : WG-EMM-05/18 : Author(s): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)
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Revised stock assessment of the Patagonian toothfish, Dissostichus eleginoides, in research block C of Division 58.4.4 (Ob & Lena Banks) using CASAL
Abstract: Regarding the low levels of stocks of Dissostichus spp. and the high levels of IUU ... fishing, CCAMLR decided to close the fishery in 2002 in division 58.4.4. Since 2008 only one vessel ... , Shinsei maru No. 3, has conducted research fishing in accordance with a research plan submitted under CM ... 24-01. France notifies its wish to collaborate in this research fishery over the coming years in ...
Meeting Document : WG-FSA-14/06 : Author(s): A. Rélot-Stirnemann (France)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2016/17 in Division 58.4.3a by France and Japan
block by two vessels using longlines: Shinsei Maru No. 3 (Japan) and the Saint André (France). The catch ... Abstract: In Division 58.4.3a, since 2012, research fishing has been conducted in the research ... limit for Dissostichus spp. is 32 tonnes and the total reported catch up in 2014/2015 was 15 tonnes. A ... technical problem for the French vessel had shortened the fishing campaign. In this proposal, France and ...
Meeting Document : WG-SAM-16/03 : Author(s): Delegations of France and Japan
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Community structure of epipelagic macrozooplankton in the Ross Sea
Abstract: During the 9th research cruise of the R/V Kaiyo-maru, macrozooplankton samples were ... collected from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in ... the Ross Sea and neighboring waters. Biomass and abundance (number of individuals) were 0 ~ 32.1 g ... extremely low at stations on the continental shelf along 175°E and 170°W except the southern most station ...
Meeting Document : WG-EMM-07/34 Rev. 1 : Author(s): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
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Population change in gentoo penguins Pygoscelis papua at South Georgia: potential roles of adult survival, recruitment and deferred breeding
survival and recruitment rates, to model the fluctuations in breeding populations, taking account of ... variations introduced by good and bad years (as classified on the basis of breeding success). There is ... conditions. Comparing model and reality indicates that deferred breeding could account for the discrepancy in ... one year, and for part of the differences in two other years, when mortality rates must also have been ...
Meeting Document : WG-CEMP-93/08 : Author(s): J.P. Croxall and P. Rothery (United Kingdom)